J-S's profile - activity

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I'm looking for the most optimal way of extracting single color on background and replace it with some picture on the fly in JavaCV. I wrote very simple method reading pixel by pixel and replacing it if the color is green for example. This is very slow and even if I divided it into few threads it works dramatically slow. This must be done on live so I have to find out some other method. Perhaps I will have to add some watermark as well after background replacing, so the application must be quite fast.

Does anybody can help me finding right way of doing it ? I spend all day long trying to find other way of doing it, but.. all examples I have found doesn't work or maybe I do not know how to adopt them to my needs.

This guy (http://www.youtube.com/watch?v=WOEuE3D88b0) wrote that he is reading pixel by pixel - no way, or maybe he had very fast multi-core workstation. On my MacBook Pro 2.5 i5 it just doesn't work :(

Regards Jan

Dear droidCV. I'm getting error on opacity = foreground.get(fY , fX)[3]; OutOfBoundsException 3. Should I format this two Mat's in special way ? Regards Jan

I had this same problem. Try if you use corresponding OpenCV version. It must be equal to opencv_java244. If you are using 2.4.6 try with 'opencv_java246' etc ;)

Hope this helps Jan